I2C Shield for Raspberry Pi 4, Pi 3, & Pi 2 with Outward Facing I2C Port Terminates over HDMI Port - NCD Store

I2C Shield for Raspberry Pi 4, Pi 3, & Pi 2 with Outward Facing I2C Port Terminates over HDMI Port - NCD Store

1-Channel General Purpose SPDT Relay Controller + 7 GPIO with I2C Interface - NCD Store

P82B715TD Long Distance I2C Bus Extender I2C Mini Module - NCD Store

8-Channel On-Board 97% Accuracy 70-Amp AC Current Monitor with I2C Interface - NCD Store

12-Channel On-Board 97% Accuracy AC Current Monitor with I2C Interface - NCD Store

Base Shield V2.0 Raspberry Pi 4B Gpio Breadboard UART/I2C/Analog/Digital Interface JST 2.0mm Connection for RaspberryPi 3B+ - AliExpress

2-Channel On-Board 97% Accuracy AC Current Monitor with I2C Interface - NCD Store

2-Channel On-Board 95% Accuracy 20-Amp AC Current Monitor with I2C Interface - NCD Store

8-Channel General Purpose SPDT Relay Controller with I2C Interface - NCD Store

PCA9685 4-Channel 8W 12V FET Driver Proportional Valve Controller with I2C Interface - NCD Store

I2C at Raspberry Pi GPIO Pinout

8 Channel I2C 4-20mA Current Receiver with I2C Interface - NCD Store

I2C Shield for Raspberry Pi 4, Pi 3 & Pi 2 with Outward Facing I2C Port - NCD Store

Geekworm Hdmi-in Module for Raspberry Pi, Hdmi to CSI-2 C779, Hdmi inpute TC358743 Supports up to 1080p25fps Compatible with Raspberry Pi 4B/3B+/3B/Pi Zero/W/2W : Electronics

4-Channel On-Board 97% Accuracy 70-Amp AC Current Monitor with I2C Interface - NCD Store